Analysis

  • max time kernel
    151s
  • max time network
    149s
  • platform
    windows10-2004_x64
  • resource
    win10v2004-20220901-en
  • resource tags

    arch:x64arch:x86image:win10v2004-20220901-enlocale:en-usos:windows10-2004-x64system
  • submitted
    23-11-2022 14:47

General

  • Target

    21c052e0dc12e9e5e47b2b30077658a5188f86f0c30d15cd9a405a33228e7e41.exe

  • Size

    377KB

  • MD5

    97de3e390b56a250cd6edc7ad6801a68

  • SHA1

    3cef223df5d5d1059002ed26eee14b7852a39be6

  • SHA256

    21c052e0dc12e9e5e47b2b30077658a5188f86f0c30d15cd9a405a33228e7e41

  • SHA512

    f45e0b7665b184c0b8a3a9a7b518bfc4129ba8a28619857462d53141c6eebb73faaae86f64d28fe5e2af25ef3ea7b7e33e2ffd1b4c835f62fce0e8da1cf44733

  • SSDEEP

    6144:maK7YuRhCWXuFAjPv5Ab2IpFyEiul8vWjllQV5q031poyk9GNqcq:maKd0WKKvhICEidvalneo9Qq

Score
8/10

Malware Config

Signatures

  • Executes dropped EXE 1 IoCs
  • Adds Run key to start application 2 TTPs 2 IoCs
  • Suspicious use of SetThreadContext 1 IoCs
  • Suspicious behavior: EnumeratesProcesses 62 IoCs
  • Suspicious use of WriteProcessMemory 64 IoCs

Processes

  • C:\Windows\System32\RuntimeBroker.exe
    C:\Windows\System32\RuntimeBroker.exe -Embedding
    1⤵
      PID:3364
    • C:\Windows\SystemApps\Microsoft.Windows.StartMenuExperienceHost_cw5n1h2txyewy\StartMenuExperienceHost.exe
      "C:\Windows\SystemApps\Microsoft.Windows.StartMenuExperienceHost_cw5n1h2txyewy\StartMenuExperienceHost.exe" -ServerName:App.AppXywbrabmsek0gm3tkwpr5kwzbs55tkqay.mca
      1⤵
        PID:3296
      • C:\Windows\system32\DllHost.exe
        C:\Windows\system32\DllHost.exe /Processid:{3EB3C877-1F16-487C-9050-104DBCD66683}
        1⤵
          PID:3208
        • C:\Windows\system32\svchost.exe
          C:\Windows\system32\svchost.exe -k ClipboardSvcGroup -p -s cbdhsvc
          1⤵
            PID:2584
          • C:\Windows\System32\RuntimeBroker.exe
            C:\Windows\System32\RuntimeBroker.exe -Embedding
            1⤵
              PID:4708
            • C:\Windows\System32\RuntimeBroker.exe
              C:\Windows\System32\RuntimeBroker.exe -Embedding
              1⤵
                PID:3716
              • C:\Windows\SystemApps\Microsoft.Windows.Search_cw5n1h2txyewy\SearchApp.exe
                "C:\Windows\SystemApps\Microsoft.Windows.Search_cw5n1h2txyewy\SearchApp.exe" -ServerName:CortanaUI.AppX8z9r6jm96hw4bsbneegw0kyxx296wr9t.mca
                1⤵
                  PID:3472
                • C:\Windows\Explorer.EXE
                  C:\Windows\Explorer.EXE
                  1⤵
                    PID:3048
                    • C:\Users\Admin\AppData\Local\Temp\21c052e0dc12e9e5e47b2b30077658a5188f86f0c30d15cd9a405a33228e7e41.exe
                      "C:\Users\Admin\AppData\Local\Temp\21c052e0dc12e9e5e47b2b30077658a5188f86f0c30d15cd9a405a33228e7e41.exe"
                      2⤵
                      • Suspicious use of SetThreadContext
                      • Suspicious use of WriteProcessMemory
                      PID:4936
                      • C:\Users\Admin\AppData\Roaming\Nyofb\tyipd.exe
                        "C:\Users\Admin\AppData\Roaming\Nyofb\tyipd.exe"
                        3⤵
                        • Executes dropped EXE
                        • Adds Run key to start application
                        • Suspicious behavior: EnumeratesProcesses
                        • Suspicious use of WriteProcessMemory
                        PID:364
                      • C:\Windows\SysWOW64\cmd.exe
                        "C:\Windows\system32\cmd.exe" /c "C:\Users\Admin\AppData\Local\Temp\HUS5398.bat"
                        3⤵
                          PID:724
                    • C:\Windows\system32\taskhostw.exe
                      taskhostw.exe {222A245B-E637-4AE9-A93F-A59CA119A75E}
                      1⤵
                        PID:2388
                      • C:\Windows\system32\sihost.exe
                        sihost.exe
                        1⤵
                          PID:2316
                        • C:\Windows\system32\svchost.exe
                          C:\Windows\system32\svchost.exe -k UnistackSvcGroup -s CDPUserSvc
                          1⤵
                            PID:2308

                          Network

                          MITRE ATT&CK Enterprise v6

                          Replay Monitor

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                          Downloads

                          • C:\Users\Admin\AppData\Local\Temp\HUS5398.bat

                            Filesize

                            303B

                            MD5

                            69d48b5783cb2fddb1c5e3daf30d613e

                            SHA1

                            69d2001ba2a796bdcd492591314774140adef445

                            SHA256

                            ef18142ec66c1a09921644a30c05eddaad614469f7dc106570581d98e2c75d68

                            SHA512

                            03a2ccbb605284755101b30e5cfabdf67614e0d5a8ffa3cf46a4cbfff5cd73bb54eec4aaa62a09f3a967ba1aec39c53582be3ce30ac8d89398974a71b86bfc74

                          • C:\Users\Admin\AppData\Roaming\Nyofb\tyipd.exe

                            Filesize

                            377KB

                            MD5

                            2e06eb823886da6a071c51db94d517fb

                            SHA1

                            49bc3da6b0db251380d89bb86ab80158dceb39d7

                            SHA256

                            4d760d15a9feacdf7bf8a5ec0a8c65ad81908e6df5fb7b7f8e58c7d4f1494907

                            SHA512

                            3513777d71f5bee9aae26e000c40fcaf7160b2eb0506fc3a20b7246ed71449eb565728392276c4596ea961f709ab8e53d90211d0b379f6351d41a4dc5ba3c8c4

                          • C:\Users\Admin\AppData\Roaming\Nyofb\tyipd.exe

                            Filesize

                            377KB

                            MD5

                            2e06eb823886da6a071c51db94d517fb

                            SHA1

                            49bc3da6b0db251380d89bb86ab80158dceb39d7

                            SHA256

                            4d760d15a9feacdf7bf8a5ec0a8c65ad81908e6df5fb7b7f8e58c7d4f1494907

                            SHA512

                            3513777d71f5bee9aae26e000c40fcaf7160b2eb0506fc3a20b7246ed71449eb565728392276c4596ea961f709ab8e53d90211d0b379f6351d41a4dc5ba3c8c4

                          • memory/364-139-0x0000000000400000-0x0000000000463000-memory.dmp

                            Filesize

                            396KB

                          • memory/364-161-0x0000000002640000-0x0000000002A40000-memory.dmp

                            Filesize

                            4.0MB

                          • memory/364-135-0x0000000000000000-mapping.dmp

                          • memory/364-142-0x0000000002640000-0x0000000002A40000-memory.dmp

                            Filesize

                            4.0MB

                          • memory/724-152-0x000000006FFF0000-0x0000000070000000-memory.dmp

                            Filesize

                            64KB

                          • memory/724-156-0x000000006FFF0000-0x0000000070000000-memory.dmp

                            Filesize

                            64KB

                          • memory/724-160-0x0000000001160000-0x00000000011A8000-memory.dmp

                            Filesize

                            288KB

                          • memory/724-157-0x000000006FFF0000-0x0000000070000000-memory.dmp

                            Filesize

                            64KB

                          • memory/724-158-0x000000006FFF0000-0x0000000070000000-memory.dmp

                            Filesize

                            64KB

                          • memory/724-155-0x000000006FFF0000-0x0000000070000000-memory.dmp

                            Filesize

                            64KB

                          • memory/724-153-0x000000006FFF0000-0x0000000070000000-memory.dmp

                            Filesize

                            64KB

                          • memory/724-150-0x000000006FFF0000-0x0000000070000000-memory.dmp

                            Filesize

                            64KB

                          • memory/724-147-0x0000000000000000-mapping.dmp

                          • memory/724-148-0x0000000001160000-0x00000000011A8000-memory.dmp

                            Filesize

                            288KB

                          • memory/4936-140-0x000000006FFF0000-0x0000000070000000-memory.dmp

                            Filesize

                            64KB

                          • memory/4936-146-0x000000006FFF0000-0x0000000070000000-memory.dmp

                            Filesize

                            64KB

                          • memory/4936-151-0x0000000002800000-0x0000000002C00000-memory.dmp

                            Filesize

                            4.0MB

                          • memory/4936-145-0x000000006FFF0000-0x0000000070000000-memory.dmp

                            Filesize

                            64KB

                          • memory/4936-132-0x0000000000400000-0x0000000000463000-memory.dmp

                            Filesize

                            396KB

                          • memory/4936-143-0x000000006FFF0000-0x0000000070000000-memory.dmp

                            Filesize

                            64KB

                          • memory/4936-149-0x0000000000400000-0x0000000000463000-memory.dmp

                            Filesize

                            396KB

                          • memory/4936-144-0x000000006FFF0000-0x0000000070000000-memory.dmp

                            Filesize

                            64KB

                          • memory/4936-138-0x0000000002800000-0x0000000002C00000-memory.dmp

                            Filesize

                            4.0MB

                          • memory/4936-154-0x0000000002C00000-0x0000000002C48000-memory.dmp

                            Filesize

                            288KB

                          • memory/4936-141-0x000000006FFF0000-0x0000000070000000-memory.dmp

                            Filesize

                            64KB

                          • memory/4936-134-0x0000000002800000-0x0000000002C00000-memory.dmp

                            Filesize

                            4.0MB

                          • memory/4936-133-0x0000000002800000-0x0000000002C00000-memory.dmp

                            Filesize

                            4.0MB